Flight number record
OO 3895
SkyWest Airlines · Idaho Falls to Salt Lake City
- Route
- IDA → SLC
- Departs
- 19:00
- Flights
- 341
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s OO 3895, check with SkyWest Airlines. SkyWest Airlines flies under contract for larger airlines, so a ticket for this flight may show a different airline code and number.
OO 3895 earns an A+. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 14 points better than the national rate of 77.3%. When something does go wrong the average delay runs a little over an hour. That rests on 341 flights, with a median arrival 8 minutes early.
Set against the rest of the country, OO 3895's record is 14 points better than the US average of 77.3%. That gap is worth roughly 136 fewer late arrivals for every thousand flights.
Key figures
On time
90.9%
Arrivals under 15 minutes late, of 340 completed flights
Avg delay
73 min
Across delayed arrivals only, not all flights
Cancelled
0.29%
National rate is 1.89%
1 hour+ late
4.4%
National rate is 8.3%
These figures cover 341 flights between September 2025 and August 2026. The median arrival is 8 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
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Schedule
When OO 3895 flies
OO 3895 flies IDA to SLC without a single fixed slot. Its most common scheduled departure was 19:00, used on 82 of 341 flights, with 18:35 (46 flights) and 18:55 (36 flights) next.
- Departs 19:0082 flights24.0%
- Departs 18:3546 flights13.5%
- Departs 18:5536 flights10.6%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 19:00 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and OO 3895 runs 23 points better at 90.9%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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Against the route
OO 3895 next to IDA to SLC
Every carrier on IDA to SLC combined arrived on time 91.8% of the time across 1,195 flights, so OO 3895 is about level with it. SkyWest flew 878 flights on the same city pair under all its flight numbers, including this one, and those ran 92.6% on time. Across its whole network SkyWest Airlines managed 78.7%, which this flight beats by 12 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 3895thin sample | 341 | 90.9% | 73 min | 0.29% | A+ |
| All SkyWest Airlines on IDA–SLC | 878 | 92.6% | 77 min | 0.11% | A+ |
| All carriers on IDA–SLC | 1,195 | 91.8% | 109 min | 0.42% | A+ |
| SkyWest Airlines, whole network | 855,406 | 78.7% | 88 min | 1.79% | B |
Across the year
OO 3895 quarter by quarter
OO 3895 did not run the same all year. Its best quarter was Oct–Dec 2025 at 97.6% on time and its weakest Jan–Mar 2026 at 82.2%, a swing of 15 points on roughly 68 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.
- Jul–Sep 202530 flights93.3%
- Oct–Dec 202586 flights97.6%
- Jan–Mar 202673 flights82.2%
- Apr–Jun 202691 flights91.2%
- Jul–Sep 202661 flights90.2%
Scale runs 75% to 100%.
By weekday, OO 3895 did best on Friday at 98.0% on time and worst on Sunday at 83.7%. Each day rests on about 49 flights, so a gap of 14 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late OO 3895 runs when it is late
OO 3895 often beats the schedule: 102 of 340 completed flights, 30%, arrived 15 minutes or more early. The 31 late arrivals split 11 under half an hour, 5 between 30 and 60 minutes, and 15 an hour or more.
- 15+ min early102 flights30.0%
- Within 15 min207 flights60.9%
- 15–29 min late11 flights3.2%
- 30–59 min late5 flights1.5%
- 1–2 hours late9 flights2.6%
- 2+ hours late6 flights1.8%
Scale runs 0% to 100%.
Share of 340 completed flights by arrival against schedule.
7 of 33 late departures made up the time and arrived on time, 21% of them. Only 5 left on time and still arrived late.
The worst days
Worst days for OO 3895
The latest arrival of the period was on 29 May 2026, 3 hours 54 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 29 May 2026 | 3 hours 54 minutes | Carrier |
| 4 March 2026 | 3 hours 11 minutes | Carrier |
| 15 July 2026 | 3 hours 8 minutes | Extreme weather |
| 2 February 2026 | 2 hours 51 minutes | Carrier |
| 25 March 2026 | 2 hours 43 minutes | Carrier |
Delay causes
Why OO 3895 runs late
Carrier accounts for 65% of the 2,259 delay minutes carriers reported here, and the remaining four split what is left.
- 65%Carrier
- 25%Extreme weather
- 10%National Airspace System
Extreme weather accounts for 25% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the quarterly figures above are the more useful view of the risk. The national share is 6%, so this operation carries roughly 4.2 times the usual weather exposure. The split is drawn from 2,259 delay minutes reported on OO 3895.
Cancellations are rare at 0.29%, below the national 1.89% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 4.4% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
OO 3895 is not only a IDA to SLC flight. It also flew SLC to IDA (341 flights, 89.4% on time) often enough to be scored on its own. Airlines attach one number to several legs of an aircraft's day, and each leg keeps its own record here, so check which city pair is on your booking before reading a rate.
One caution: this is a thin sample. 341 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
| Also flown as | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| SLC to IDAthin sample | 341 | 89.4% | 68 min | 0.29% | A+ |
What to do with this
Booking OO 3895
For a booking, OO 3895 has one of the better records a US domestic flight can show: 90.9% on time and 0.29% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- IDA to SLC, every carrier and departure
- SLC to IDA, the return direction
- Delta Air Lines 2335 on the same route89.8%
- Salt Lake City International (SLC) delay statistics
- SkyWest Airlines on-time record
- Every SkyWest Airlines flight number with a record
- The most and least reliable flight numbers in the US
- Worst months to fly in the US, ranked by the data
A flight number here means SkyWest Airlines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.